KSZCZOTEK, Mikołaj; KIERMASZ, Błażej; CISEK, Michał. Informational efficiency of the Polish capital market in a weak form, based on the example of companies from the WIG20 index. Studia Prawno-Ekonomiczne, [S. l.], v. 118, p. 249–264, 2021. DOI: 10.26485/SPE/2021/118/13. Disponível em: https://journals.ltn.lodz.pl/Studia-Prawno-Ekonomiczne/article/view/1233. Acesso em: 29 apr. 2024.